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Dell Configuration Guide for the S4048–ON System 9.14.2.5

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Port Channel Definition and Standards

Link aggregation is defined by IEEE 802.3ad as a method of grouping multiple physical interfaces into a single logical interface—a link aggregation group (LAG) or port channel.

A LAG is “a group of links that appear to a MAC client as if they were a single link” according to IEEE 802.3ad. In Dell EMC Networking OS, a LAG is referred to as a port channel interface.

A port channel provides redundancy by aggregating physical interfaces into one logical interface. If one physical interface goes down in the port channel, another physical interface carries the traffic.


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